Belt Squeal

R

russ

New member
Joined
Sep 28, 2005
Messages
26
Age
57
Location
tinley park , illinois
I HAD A NEW BELT PUT ON AND NOW IT SQUEALS AT IDLE.. IS IT JUST
BECAUSE ITS NEW.. I PUT ON ABOUT 100 MILES ON THE BELT AND ITS
STILL MAKING THE NOISE.. WHAT SHOULD I DO. OR WILL IT JUST WEAR
ITSELF IN
THANKS
RUSS


:die: :die: :die: :die: TO THE CATS

I GOT BEAT BY A CROSSFIRE 700 ON A LAKE
 

russ said:
I HAD A NEW BELT PUT ON AND NOW IT SQUEALS AT IDLE.. IS IT JUST
BECAUSE ITS NEW.. I PUT ON ABOUT 100 MILES ON THE BELT AND ITS
STILL MAKING THE NOISE.. WHAT SHOULD I DO. OR WILL IT JUST WEAR
ITSELF IN
Click to expand...

If it's still squealing after 100 miles, you'll probably need to change the belt deflection. That's pretty easy -- remove the belt, remove the secondary clutch, look at the back side and you'll see three bolts - unbolt them one at a time and remove the shim (washer) and reinstall the bolt - reinstall the clutch and belt. If there are two shims per bolt, try removing the thinner one and see if that stops the squeal, if it doesn't, reinstall the thinner one and remove the thicker one, if that doesn't stop the squeal, remove both. If that doesn't stop the squeal, then most likely your clutch alignment is off.
 
CRAZY QUESTION WHY WOULD IT DO IT ON THE REPLACMENT BELT
AND IS IT HURTING ANYTHING. IM A AIR HEAD AND WOULD RATHER NOT
TAKE THE CLUTCH ETC APART

THANKS

RUSS :rocks:
 
it is not really hurting anything. Just gets anoying. And not fun if you pull into a gas station or lodge with 50 machined and all the sleders turn around and look at you.
There is really no clutch disassembly to do.
Remove the big bold holding the secondary on. Look at the back side you will see three small bolts with washers on it (may have 1,2 or 3) remove one bolt at a time remove the thinest washer and put the bolt back in. DO this to all three bolts. This changes the hight the belt will sit in the secondary at idle.
If the end of the bolts look really flat and worn out replace the three bolts.
 
The old belt was wore and sat in the proper postion in the secondary. When you replaced with a new one you effectevly got a larger belt because it is not worn, so it sits up higher on the secondary then it did before. Yamaha realizes this and made the shim adjustment explained above. When you remove shims it allows the secondary to open getting the belt to the correct height, as the belt wears it will lower and lower into the secondary, there comes a time when you add the shims back in to bring it back to proper height.

Leaving it where it is will not hurt anything just be annoying and it will have slightly better hole shot, with slightly less top end

Letting it lower to far will create a bog if it gets bad enough and may actually increase top end (less friction).
 
That happened on my old sx 700... it was a high pitched squeel, it would get so bad that when i pulled up beside my dad on the trail he would reach over and shut the sled off!!! we tryed everythign from cleaning the clutches to changing the belts... it would stop squeeling for about 100 miles, the nstart back up again... at the beginning of this year my viepr started to do it, but it isnt as high pitched of a noise, so its not as annoying...
 
the same exact thing has happened to me this year. I ended up blowing a belt and when i put the new one on its squeels a lot and sometimes the sled will start creeping away when its idling. My father tells me that once i get the belt warn in a little bit it will go back to normal.
 
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